The transition of forensic science provision in England and Wales from the public to private sector has led to fears over the ability of commercial markets to influence – and even distort – forensic analysis and interpretation, according to a new study; in the first of two articles, Dr Karen Richmond of the University of Copenhagen explains the background to the research, and highlights some of the key concerns of scientists including the loss of contextual information, case fragmentation, and the diminishing role of forensic practitioners.